Keithley 2601 Reference Manual page 330

Section 12: Instrument Control Library
smuX.source.calibrateY
Function Generates and activates new source calibration constants.
Usage
s muX.source.calibrateY(range, cp1expected, cp1reference,
cp2expected, cp2reference)
range
cp1expected
cp1reference
cp2expected
cp2reference
Remarks • This function generates and activates new calibration constants for the given range. The
positive and negative polarities of the source must be calibrated separately. Use a
positive value for range
to calibrate the negative polarity.
• Typically the two calibration points used will be near zero for calibration point 1 and 90%
of full scale for calibration point 2. Full scale for calibration point 2 should be avoided if
the SMU's source is substantially out of calibration.
• Do not use 0.0 for a negative calibration point as 0.0 is considered a positive number.
• The two reference measurements must be made with the source using the active
calibration set. For example, source a value, measure it, and do not change the active
calibration set before issuing this command.
The new calibration constants will be activated immediately but they will not be
•
written to non-volatile storage. Use
nonvolatile storage. The active calibration constants will stay in effect until the
instrument is power cycled or a calibration set is loaded from non-volatile storage
with the
This function will be disabled until a successful call to
•
Details See Section 16
Also see smuX.cal.restore, smuX.cal.save, smuX.makebuffer,
12-70
X = SMU channel (a or b)
Y = SMU measure function (v or i)
where v = voltage, i = current
to
calibrate the positive polarity and a negative value for range
function.
smuX.cal.restore
"Calibration".
Return to
Series 2600 System SourceMeter® Instruments Reference Manual
The measurement range to calibrate.
The source value programmed for calibration
point 1.
The reference measurement for calibration
point 1 as
measured externally.
The source value programmed for calibration
point 2.
The reference measurement for calibration
point 2 as measured externally.
to commit the new constants to
smuX.cal.save
smuX.cal.unlock
smuX.measure.calibrateY
Section Topics
is made.
2600S-901-01 Rev. C / January 2008